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该贴将不断积累更新.1.在访问某一节点时,如 childNodes[i],要获得这个节点的值,这个值是2.text以上的XML,在IE中,是的第一个子元素,可以通过 root.childNodes[0],或root.firstChild访问,但在Firefox中,是的第二个子元素,第一个子元素是换行符,nodeType是#text,如果将代码改为以下:text那么IE与Firefo

IntroductionIf you are developing client-side re-usable scripting objects, sooner or later you will find yourself spotting out memory leaks. Chances are that your browser will suck memory like a spo

We discovered as soon as we (and our users) got their hands on Internet Explorer 7 that freehand drawing in Thinkaturewas misbehaving. In particular, we learned that it was only possible tostart a

Recently, Ive spent a lot of my time taking photographs. When I get home from taking pictures, I immediately pop open Lightroom to import the images, pick out my favorites, do some adjustments on t

 In part 1 of this series, we looked at how each pixel of an image is composed of three parts; red, green and blue, and showed how to make histograms to give a summary of each. Towards the end, I sh

本文为翻译文章，文章原文：http://blog.sproutcore.com/sproutcore-2-0-beta-1-released/译者：Jacky博客：http://blog.youkuaiyun.com/varkychan 因本人英文水平一般，所以翻译错误在所难免，发现错误请邮件（jacky@iajax.net）通知我改正。感激不尽！ A few weeks ago, w

本文为翻译文章：译者：Jacky 译者博客：http://blog.youkuaiyun.com/varkychan原文：http://guides.sproutcore.com/getting_started.html 译者前言：由于国内关于SproutCore的中文资源比较少，所以我开始尝试翻译官方网站的相关教程及指南，因为本人英文水平真的一般，语文水平也不咋的，所以在译文可能表达得不

在网页中实现图片上传功能，当用户选择了图片文件后，想在页面中即时预览该图片，这个简单的需求在很久很久以前可以实现，后来因为安全性的问题被禁止直接访问本地文件了，所以又在很长很长一段时间里，想通过HTML直接预览用户选择的图片变得不可能，自从有了HTML5，这个功能又回来了，通过FileReader可以轻松的实现这个功能。只要在文件表单元素中监听 onchange 事件，然后通过FileRead